Gas-plate.



H. W. SGHULZE. GAS PLATE. A'PPLVIOATION FILED JUNE 16. 1909.

966.480. Patented Aug. 9, 1910.

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HENRY SCHULZE, YOF IVIILVAUKEE, WISCONSIN.

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Specicaton of Letters Patent.

Patented Auen 9, 1%10.

AApplicationv filed June 16, 1909. Serial No. 502,404.

gas platesI for household or other uses-and .is adapted to rest on a suitable support, and

to be used for cookingor heating purposes. @ne of the objects of thismvention 1s to provide a simple inexpensive bui-'ner plate which is :ulapted to be connected to aegas4 pipe and to use the gas 4therefrom as the heating' medium.

A further object of the invention 1sv to provide a gas plate in which the number of burner .openings open at one time may be simply controlled in order to increase or diminish .the area of the flame.v y

A further object of this invention is to provide a gas plate in which the valve controlling the gas supply is also adapted'to control the number of burner openings in use soI that a proper supply of gas is provided for each adjustment of the area of' theburner in use. With the above and other objects in view the invention' consists of the gas plate and its parts and combinations', and all equivalents thereof. I

In the accompanying drawing in which the same referencecharacters indicate the saine parts in all of the views: Figurel `is a vertical longitudinal sectional view of the complete gas plate shown connected th a gas pipe; Fig 2 is a plan view thereof a part of the'plate broken away to show interior construction; Fig. 3 is a transverse section of a fragment of the plate taken on line SW3 of Fig. l; Fig. l is a lsimilar view taken on line 4 4 of Fig. l; Fig i is a similar view taken on line 5-5 of Fig.` l; and

'Figt5 is a View of a. portion of the valve tube removed from the plate.

Referring to the drawing the numeral 8 indicates the top of a table or other support on Which is adapted to rest the gas plate 9 lwhich consists of an annular burner, platel0 provided with concentric recesses 1l 1n the upper surface thereof and a perforated top plate l2 connected thereto by screws 13'.

This perforated plate is formed of sheet metal embossed with concentric ribs or corrugations 14; which coincide with the concentric recesses of the burner plate. The portions l ofthe burnerplate on which rests 60 the depressed portions of the perforated top plate are slightly recessed to accommodate an asbestos packing 16 interposed between said burner plate and the perforated plate to form gas tight connections between the'65 concentric recesses 17 formed by said plates. The {perfor-ations 18 of the top plate are positioned in concentric lines medially in the top' of each rib so that each concentric recess is provided with a. line of burner perforations. l Y

The annular burner plate l0 is provided with a. projecting tubular extension lt) which extends froml the medial portion of the plate to and beyond the periphery of the plate and the opening in the extension intersects the concentric recesses 17 forming` openings 20,21 and Q2 to admit gas' to said recesses. I

tubular valve 23 having an enlarged 80 l conical outer' end 24 and an 'inner closed end 25, is positioned partly within the tubular extension and is adapted to control the supply of gas fed to the burner. The portion of the tubular valve within the extension is 35 )rovided with valve oieninus or )ortis 26" 2T; andvh which are' :ulapted to registen' .with the openlngs 20, 21. and 22 respectively during certain adjustments of the'valve. These openings or ports are of graduated lengths with portions offset'and leading the other openings transversely with relation to the tubular valve so't-hatin turning said.

valve the port 26 will register with the open of the valve will ing 20, a further turnin 'move the port 2T into register with the opening 2l and' a still further lturning of thevalve will move the port 28 into register with the opening 22 thus 4q oroviding means for supplying gas to the inner recess or the inner and the medial recess or all three recesses at the same time'to accommodate varying heatrequirements. The' valve is sup-V plied With gas from a p1pe.29 connected to a' source of supply and provided With a con- 105 trolling valve 30 the handle 31 ofiwhich extends through an opening 32 provided 1n the conical end of the tubular valve. A tube 33 extends from the controlling valve andl I 'into the tubular valve to forma Bunsen. 110

burner of the tubular valve. The plug 34 of the controlling valve is in axial aline'ment concentric recess.

With the center-of .the tubular valve permit the .handleto freely turned to open and adjust both valves. Partpfthe air supplied tothe burner enters through the` end, opening of the conical end ofthe tribu-I lar valve and the balance is suppliedthrugh the. openings 3 5 Which are controlled -by the adjustable conical tube 36 which .is pro-y vided with corresponding air openings.l

In the use of the gas plate, the controllind. valve isattached to a gas supply pipe and if it is desired toheat a small receptacle the valve-handle is 'turned to openv the valve and also'to turn the tubular valve `so that the4 gas Will' be suppliedv'only to thel inner The gas is no'W ignited and the small burner providedbythe inner recess is Well adapted to' serve its purpose Where but Aa small flame is desired.- The;` flame is adapted to bel adjusted by. opening or closing the valve more or less as may be desired to increase or 'diminish the flame.

If it is desired to still' further4 increase the vsize of the burner the controlling valve is v further opened which. movement Willturn the' tubular' valve andmove the medial port into-register with the opening to theme` dial concentric Arecess thus furnishing' gas to the medialburner which Willbe ignitedv by the liame of'the inner burner. The gas supply to the medial burner may also be adjusted to increase or diminish the fla-me in4 the samev manner as the inner burner.. If it is .now .desired to still further augment the flame` the valve handle is still further' 1 turned vto lopen the valve to full openingand' lto move the outer port of the tubular valve into register with the opening tothe outer concentric recess to supply gas totv the outer line ofburner openings the gasi from which Will be ignited by the liame'from themedial lportion of the burner thus providing a burner which may be increased or dimm-'- ished iny area to form heating units and also vproviding means whereby the supply of gas to each unit may be regulated bythe saine controlling valve handle.

From the foregoing descriptionjit lwill be seen that the gas plate is very simple in construction and is vvery economical in use and the burner may be adjusted to. provide the sized flame desired. 7

What I claim as lny invention is :`l

` '1, vA gasplate, 'comprising a burner plate' provided with a plurality of independent recesses, a top plate connected to said burner plate and provided With a plurality of inde- With'the recesses, a'tubular valve lconnected' tothe burner plate and provided with' ports i pendent sets of burnerppenings-.in register-f for lcontrollingthe 'supply of'gasjto each recess, a'y valve .for controlling the admission of gas to the tubular valve, and' a -l .handle for operating, both of said .valves simultaneously.

Q. A gas. plate, provided 'with a plurality,otindependent recesses, atop plateconnected to said burner plate and provided With a lplurality, of'independent sets of'burner openings inregister -With the recesses, a tubular valve connected to the burner plate. and provided 'with ports positioned to' be successively .moved into register with the recesses for controlling the 'supply oitgas to leach recess, la lvalve for controlling the supply of'g'as to lthe tubular valve, said valves simultaneously;

3. -A- gas plate, comprisinr a burner plate |provided -With a plurality of concentric recesses and with a projecting tubular extenl ,65y comprising a burner 'plate anda vhandlefor operating both of u sion, al top-- plateconnected to said burner plate` and providedwith a plurality of concentric lines of burner openings in register with theconcen'tric recesses, a tubular valve positioned jin the tubular'extensi'on and provided With independent ports for contro1' .ling the admission of ,Q'a's to each concentric recess, ai valve for controlling the admission .f gas itc. the tubular valve, and a handle loperating both valves simultaneously.

4.' A gas plate,--c'o'mprising -a burner plate provided with-a" pluralityvof concentric gas" andpacking recesses and with -aprojecting tubular extension, a top plate connected tov centric lines of. burner openingsand ,with

portions positioned j'to register with `the packing recesses, a packing provided in said packing recesses-and interposed between the burner plate and the top plate', a tubular valve positioned in the tubular extension' 'andprovided with independent'ports t'or` 4controlling the admission-of .gas'to each conthe burner plate and provided- With'cQn- 

